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Flask-SQLAlchemy import/context issue
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Can you do that multiple times? For example if I have more than one models.py file?
– Brad Wright
Mar 14 '12 at 6:50
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Permutations in JavaScript?
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If you notice, the code actually splits the chars into an array prior to do any permutation, so you simply remove the join and split operation
var permArr = [],
usedChars = [];
function permute(input) {
var i, c...
Where is git.exe located?
...ersus \bin)
From GitHub Desktop 1.1
The UI is different and the Git path now is in:
C:\Users\<username>\AppData\Local\GitHubDesktop\app-<appversion>\resources\app\git\cmd\git.exe
PS: AppData is a hidden folder by default.
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Open link in new tab or window [duplicate]
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When not using a special name, as specified in links above, target is the name of the window (or "frame") you're targeting. If you set it to _tab or _new then it opens a window with that name. If a user clicks that link, goes back to your initial page and click...
Can grep show only words that match search pattern?
... I'm not sure under what conditions it does and doesn't display, but I do know that when I used grep across a number of directories it did display the full file path for all matched files, whereas with -h it just displayed the matched words without any specification about which file it is. So, to m...
The tilde operator in Python
...a single argument) that is borrowed from C, where all data types are just different ways of interpreting bytes. It is the "invert" or "complement" operation, in which all the bits of the input data are reversed.
In Python, for integers, the bits of the twos-complement representation of the integer...
How to find and return a duplicate value in array
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a = ["A", "B", "C", "B", "A"]
a.detect{ |e| a.count(e) > 1 }
I know this isn't very elegant answer, but I love it. It's beautiful one liner code. And works perfectly fine unless you need to process huge data set.
Looking for faster solution? Here you go!
def find_one_using_hash_map(arr...
When do I use the PHP constant “PHP_EOL”?
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From main/php.h of PHP version 7.1.1 and version 5.6.30:
#ifdef PHP_WIN32
# include "tsrm_win32.h"
# include "win95nt.h"
# ifdef PHP_EXPORTS
# define PHPAPI __declspec(dllexport)
# else
# define PHPAPI __declspec(dllimport)
# endif
# define PHP_DIR_SEPARATOR ...
Python debugging tips [closed]
...s possible to execute arbitrary Python expressions using pdb. For example, if you find a mistake, you can correct the code, then type a type expression to have the same effect in the running code
ipdb is a version of pdb for IPython. It allows the use of pdb with all the IPython features including ...
How to uninstall Python 2.7 on a Mac OS X 10.6.4?
...n.PythonProfileChanges-2.7
org.python.Python.PythonUnixTools-2.7
you can now select which packages you will unlink (remove).
This is the unlink documentation:
--unlink package-id
Unlinks (removes) each file referenced by package-id. WARNING: This command makes no attempt to perfor...